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A-Level Biology OCR A

Specific Enzyme Type Active Shape Substrate Explain Catalyses

Front Explain why an enzyme only catalyses one type of reaction.
Back Why enzymes are specific:
  • Different enzymes have differently shaped active sites
  • Each different specific active site shape is complementary to a specific substrate shape
  • This means that each enzyme will only be able to catalyse a specific substrate and therefore only one type of reaction

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